Avoid TLS load in AstNode constructor.

src/parser.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 650 matching lines @@
 
   Scope* NewScope(Scope* parent, Scope::Type type, bool inside_with);
 
   Handle<String> LookupSymbol(int symbol_id);
 
   Handle<String> LookupCachedSymbol(int symbol_id);
 
   Expression* NewCall(Expression* expression,
                       ZoneList<Expression*>* arguments,
                       int pos) {
-    return new Call(expression, arguments, pos);
+    return new(zone()) Call(expression, arguments, pos);
   }
 
 
   // Create a number literal.
   Literal* NewNumberLiteral(double value);
 
   // Generate AST node that throw a ReferenceError with the given type.
   Expression* NewThrowReferenceError(Handle<String> type);
 
   // Generate AST node that throw a SyntaxError with the given
@@ skipping 67 matching lines @@
  private:
   static const int kTypeSlot = 0;
   static const int kElementsSlot = 1;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(CompileTimeValue);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_PARSER_H_